281297 has 2 divisors, whose sum is σ = 281298. Its totient is φ = 281296.

The previous prime is 281291. The next prime is 281317. The reversal of 281297 is 792182.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 173056 + 108241 = 416^2 + 329^2 .

It is a cyclic number.

It is not a de Polignac number, because 281297 - 2⁶ = 281233 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281297.

It is not a weakly prime, because it can be changed into another prime (281291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140648 + 140649.

It is an arithmetic number, because the mean of its divisors is an integer number (140649).

2²⁸¹²⁹⁷ is an apocalyptic number.

It is an amenable number.

281297 is a deficient number, since it is larger than the sum of its proper divisors (1).

281297 is an equidigital number, since it uses as much as digits as its factorization.

281297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 29.

The square root of 281297 is about 530.3743960638. The cubic root of 281297 is about 65.5221842770.

The spelling of 281297 in words is "two hundred eighty-one thousand, two hundred ninety-seven".